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Ultimate Ashwagandha - KSM-66Ultimate Ashwagandha - KSM-66
Ultimate Ashwagandha - KSM-66
Stress-proof your mind and body with the high-powered adaptogenic support of Swanson Ultimate Ashwagandha. For thousands of years, Ayurvedic herbalists have treasured ashwagandha as a way to enhance mental and physical vitality, reinforce the immune system and mitigate the effects of stress. Modern science...
$3.57
$14.29
$3.57
Lithium OrotateLithium Orotate
Lithium Orotate
Lithium is a valuable trace element. Lithium salts have been used for a variety of human health applications since the 19th century. Today, low-dose lithium orotate is available as a dietary supplement. This form of lithium in Swanson Ultra Lithium Orotate binds lithium ions...
$2.77
$11.09
$2.77
Broccoli Extract with GlucosinolatesBroccoli Extract with Glucosinolates
Broccoli Extract with Glucosinolates
Give your body the protective benefits of phytonutrients in broccoli with Swanson Broccoli Extract. Broccoli contains antioxidant phytonutrients known as glucosinolates, which provide powerful free radical protection for the cardiovascular system, cells and tissues throughout the body. Our Broccoli Extract gives you a highly...
$5.92
$23.69
$5.92

Shop by Health Concern Stress Support L-Theanine

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  • L-Theanine
    L-Theanine
    With 100 mg of L-theanine, NOW Foods' L-Theanine features an amino acid naturally found in green tea. These vegetable capsules promote relaxation without the drowsiness or negative side effects associated with other calming agents. L-theanine also supports healthy cardiovascular function through this relaxing effect...
    $3.70
    $14.79
    $3.70
  • L-Theanine
    L-Theanine
    An amino acid that is naturally found in green tea, NutraLife L-Theanine promotes relaxation and helps combat nervous tension. Each capsule contains 200 mg of l-theanine. Contains no peanuts, eggs, dairy, soy, wheat, yeast, gluten, tree nuts, crustacean shellfish, fish or other animal byproducts.
    $2.77
    $11.09
    $2.77
  • L-Theanine with SuntheanineL-Theanine with Suntheanine
    L-Theanine with Suntheanine
    Doctor's Best® L-Theanine with Suntheanine® supports relaxation without drowsiness to help manage stress and tension. Suntheanine is the premier, patented form of the amino acid L-theanine. Suntheanine is the purest form of L-theanine on the market today, derived from the amino acid in green...
    $6.15
    $24.59
    $6.15
  • L-Theanine with Green TeaL-Theanine with Green Tea
    L-Theanine with Green Tea
    L-Theanine is a free-form amino acid found in green tea. Each convenient, one-VegCap serving of Solaray L-Theanine includes L-theanine 200mg. In addition, it includes 100 mg of green tea (Camellia sinensis) (leaf) for powerful, additional nutritive support. With a long history of use, studies...
    $7.32
    $29.29
    $7.32
  • GABAplex with L-Tyrosine & L-TheanineGABAplex with L-Tyrosine & L-Theanine
    GABAplex with L-Tyrosine & L-Theanine
    Don't let stress overload push you over the edge—get back in control with the advanced calming nutrition of Swanson GABAplex with L-Tyrosine & L-Theanine. Swanson GABAplex is a vegan stress support supplement designed to promote calm, relaxation, and mental/emotional wellbeing during high-stress times.When excessive...
    $4.20
    $16.79
    $4.20
  • Fermented L-TheanineFermented L-Theanine
    Fermented L-Theanine
    Healthy Origins L-Theanine supports relaxation as well as mental clarity and focus. An amino acid found in the Camellia sinensis (tea) plant, L-theanine has been found to stimulate production of alpha waves in the brain, waves that are detected during periods of wakeful relaxation. 
    $5.00
    $19.99
    $5.00
  • Vegan Theanine 100Vegan Theanine 100
    Vegan Theanine 100
    Vegan Theanine 100 is a unique amino acid found almost exclusively in green tea that exerts beneficial effects on brain metabolism. It induces relaxation without causing drowsiness, as measured by increased generation of alpha-waves. Theanine may improve learning ability and sensations of pleasure by...
    $3.00
    $11.99
    $3.00
  • Vegan Theanine 200 Extra StrengthVegan Theanine 200 Extra Strength
    Vegan Theanine 200 Extra Strength
    Get back to your positive mood and encourage restorative sleep with Jarrow Formulas’ Vegan Theanine 200 Extra Strength. Each serving delivers 200 mg L-theanine to promote relaxation without drowsiness. Theanine is an amino acid commonly found in tea and some mushrooms that has properties...
    $5.25
    $20.99
    $5.25
  • Suntheanine L-TheanineSuntheanine L-Theanine
    Suntheanine L-Theanine
    L-theanine is an amino acid found almost exclusively in tea plants and, in particular, green tea. The pioneers at Taiyo International discovered that the relaxing properties of green tea may be tied to this unique nutrient and developed Suntheanine® L-theanine through a patented process...
    $6.37
    $25.49
    $6.37
  • Suntheanine L-TheanineSuntheanine L-Theanine
    Suntheanine L-Theanine
    Get the most out of your life by de-stressing with Suntheanine L-Theanine! This unique amino acid has been extensively researched and shown to promote relaxation without causing drowsiness. Swanson Ultra, featuring patented SunTheanine, offers a safe and effective alternative to help you keep up...
    $4.12
    $16.49
    $4.12
  • Sleep Formula with L-Theanine and MelatoninSleep Formula with L-Theanine and Melatonin
    Sleep Formula with L-Theanine and Melatonin
    Swanson Sleep Formula goes beyond melatonin alone by combining four complementary sleep-support ingredients in a single formula: melatonin to support a healthy sleep-wake cycle, Suntheanine® L-theanine to promote relaxation, Relora® to help manage occasional stress, and ZMA® (zinc, magnesium, and vitamin B6) to support...
    $4.02
    $16.09
    $4.02
  • Stress Relax Suntheanine L-Theanine
    Stress Relax Suntheanine L-Theanine
    Stress Relax Suntheanine L-Theanine from Natural Factors contains pure L-theanine, a unique amino acid found in green tea that is emerging as the premier natural product that supports mental calmness and relaxation. Suntheanine is produced via a proprietary enzymatic process guaranteeing essentially pure L-theanine...
    $4.72
    $18.87
    $4.72
  • Serene Science Theanine Serene with MagnesiumSerene Science Theanine Serene with Magnesium
    Serene Science Theanine Serene with Magnesium
    Serene Science Theanine Serene with Magnesium from Source Naturals features the amino acids L-theanine and taurine to promote brain wave activity and ease tension, plus the calming neurotransmitter GABA, magnesium and holy basil for added support. Suitable for vegetarians. Contains no yeast, dairy, egg,...
    $5.60
    $22.39
    $5.60
  • Serene Science L-TheanineSerene Science L-Theanine
    Serene Science L-Theanine
     L-Theanine is a an amino acid that supports in the easing of normal everyday stress, including occasional anxiety and tension. It has been shown that L-theanine affects the emission of alpha waves in the brain that are associated with states of relaxation and focused...
    $12.07
    $48.29
    $12.07

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